Type-writing machine.



G. P. MOSHER. TYPE WRITING MACHINE. APPLICATION FILED DBG.14, 1910,

Patented Mar. 28, 1911;

4 iiiTlllllllllll WITNESEi HIE AT'TDRNEY earns CHARLES PHILO MOSHER, NEWYORK, N. Y., ASSIGNOR T0 UNION TYPEWRITER COMPANY, OF ILION, NEW YORK, ACORPORATION OF NEW YORK.

TYPE-WRITING MACHINE.

esters.

Specification of Letters Patent.

Patented Mar. 28, 19131..

To all whom it may concern:

Be it known that I, CHARLnsP; MosHER, citizen of the United States, andresident of: the borough of Brooklyn, city of New York, in the county ofKings and State of New York, have invented certain new and usefulImprovements in Type-lVriting Machines, of which the following is aspecification.

My invention relates to typewriting machines and more particularly tomeans for supporting and guiding the carriage and for maintaining thebearing rollers therefor properly spaced with reference to one laanotherand to the tracks on which they ear.

To the above and other ends which will hereinafter appear, my inventionconsists in the features of construction, arrangements of parts andcombinations of devices to be hereinafter described and particularlypointed out in the appended claims.

In the'accompanaying drawings wherein like reference charactersindicate; corresponding parts in the various views,Figure 1 is arearelevation showing the upper part of the typewriting machine embodying myinvention. Fig. 2 is a transverse sectional View of the same. Fig. 3 isa fragmentary transverse sectional view, the section corresponding toFig. 2, but showing the parts on a larger scale and with some of theparts represented in Fig. 2 omitted. Fig. 4 is a detail ,perspectiveview. of one of the separators. I

'I have shown my invention embodied in the present instance in afront-strike typewriting machine in which the carriage 1s 'fixed againstswlnging movement and is wholly supported in the rear of the plat-en,and in which there is no obstruction to the usual upwardly swinging typebars striking the front face of the platen and an unobstructed view ofthe printing line is atforded. Itshould be understood, however, that myinvention may be embodied in other styles of typewriting machine's.

The top plate 1 of the machine has brackets 2 fixed thereto by screws 3.An upper fixed guide rail 4 is secured by screws 5 to the brackets 2. Acorresponding lower fixed guide rail 6 is secured to lugs 7 on thebrackets 2; screws 8 being employed to secure the rail 6 in place. Thesefixed guide rails are alike so that a description of one applies to theother. The guide rail 4 has inclined tracks 9 formed thereon throughoutits entire length for cooperation with cylindrical anti-friction bearingrollers 10. The tracks 9 are inclined in opposite directions and thecylindrical bearing rollers have their axes arranged at correspondinginclinations. The upper tracks 9 are inclined downwardly and outwardlyfrom each other, whereas the lower tracks 9 are inclined upwardly andoutwardly away from each other. The tracks 9 and 9 are formed as flat.-bottomed grooves extending throughout the length of" the fixed rails itand 6 respectively. There are preferably four bearing rollers 10 for theuppertracks 9 and four bearing rollers 10 for the lower tracks 9 as willbe seen by an inspection of Figs. 1 and 2.

The carriage comprises a rear guide bar 11 which constitutes the solesupport for the carriage through the cooperation of said bar with thebearing rollers 10 and 10 Forwardly extending end bars 12 project fromthe rear guide bar 11 and have hearings in which a platen shaft 13 isreceived, said platen supporting the usual cylindrical platen 14. Theguide bar 11 has oppositely inclined tracks 15 formed at the topthereof, said tracks being inclined and arranged parallel with thetracks 9 on the fixed guide rail 4. The bottom of the bar 11 has tracks16 formed thereon which correspond to and are parallel with'the inclinedtracks 9 on the fixed rail 6. The carriage is thus mounted for movementon the bearing rollers 10 and 10 to travel from side to side of themachine over the top plate and is fixed against swinging movement and.guided firmly by the bearing rollers and the cooperating tracks. Theaxes of the various bearing rollers are preferably arranged at an angleof about 45.

and the tracks '15. This separator ex 'pends longitudinally ofthe-carriage and is pro The tracks at the upper and lower sides of thecarriage bar 11 vided intermediate the roller receiving openings 17 andintermediate the oppositely inclined rollers with a longitudinallyextending portion which is termed. with a rack 19. The rack is producedby punching out portions of the metal to form a series 01 interdentalopenings in the separator, which latter is preferahl; formed of sheetmetal. It will he observed that the portions or cars '20 of theseparator, in which the roller receiving openings 17 are formed,

are inclined to correspond with the inclination of the faces of thetracks 9 and 15.

lihen the separatm' is in place the raclr 19 is its travel from side toside of the machine,

as will hereinafter more clearly appear. The gal! 21 is fixed. upon ashaft mounted to turn in a hearing in the bar 11. The rear end of thisshaft has a gear 91'- fixed thereto which last mentioned gear is twicethe diameter of the pinion or gear 21. The gear 2 1 meshes with a rack25, fixed to the upper guide rail l by screws 26. The rack there tore isconnected to the frame of the machine and remains lived and it extendssubstantially througlnimt the length of the fixed guide rail -jlandthroughout the lei'iglh oi" the travel of the carriage. it will heunderstood that the travel of the carriage carries the gears 21 and Elwith it and the engagement of the gear 24: with the fixed rack 25 willproduce a rotative movement ol? this gear which is transnntted to thepinion 21,

and this motion in turn is tranf-iinittml to I the roller separatortlmmgh the engagena'nt of the pinion with the rack 1f). The client ofthe movement thus lranrjnnittial to the roller separator l8 to causesaid separator and the hearing rollers 10 controlled -lhere by to move adistanre eorrespomling to onw half the travel of the carriage in themovement oi. the latter 'l'rom side to side ol' the machine which alsocorrrsponds lo the nut-- nral rolling action of the rollers on theirtracks. in this manner the l'UllQl'w' l() are at all times properlypositioned with reference one to another with retina-nee to theearriage, and with rcteremxe to the frame of the machine. The rollers'10" are likewise n'ovided. with a separator and with m ans similar tothose described above for controlling the position of the separator.

i l l l These parts are substantial duplicates of those jireviouslydescribed and the same refas the upper separator, as indicated in Fig.

1, both separator-s will he moved a corrcspomling distance during thetravel of the ca rri a ge.

From the foregoing description it will he seen that l have providedsimple and el'li cit-n; means for mounting the c: riago and forcontrolling the positions of the bearing rollers therefor at every pointin the travel of the carriage.

lVhat I claim as new and desire to secure by Letters Patent, is:

l. in a tvpewrilmg ma nation o.v a carriage; antz-lrictlon t' ll(f1'.il. ()1

no, the comhifsaid carriage; a separator for said rollers, I

said separator being :lormed with roller rereivin openinn's therein on'o iosite sides P. n (J o't its lmrgitndinal center and with alongitudinally extending rack iutern'iedlate said roller receivingopenings; and means for cl? :lfrcting a movement of the separatorcorrespending to one-half the movement of the ca ringe, said means con'nn'ising a gear which meshes with said rack.

52. ln-a, typewriting machine, the coinhination of a carriage;antidriction rollers for said carriage; a separator for said rollers, sad scparator'heing formed with roller reeeiving openings therein onopposite sides ()Tl its longitmlmal center and with a longitudinallyextending rack intermediate said roller receiving openings and means do"etlecting a movement of the separator corresponding to one-half themovement of the carriagig said means comprising a gear carrird h v thecarriage and meshing with said rack, a second r at connected with saidfirst na-ntionetl gear and a second rack carried by a lixcd part at themachine and meshing with said secoiul gear.

ii. in a t vpmvriting machine, the combination ol a carriage;anti-friction rollers for said carriage; a separator for said rollerssaid separator benn formed with roller receiving openings therein onopposite sides of its long tudinal center and with a'longitudmallyextending rack ntermedlate said-:1

roller receiving openings; and means for ctlecting a movement of theseparator correspomling to one-half the movement of the i carriage, saidmeans comprising a shaft carried by said carriage, a gear carried bysaid shaft and meshing with said rack, a second gear carried by saidshaft and a second rack that is fixed to the frame of the machine and Iextends in the direction of the travel of the carriage and mesheswithsaid second gear.

el. In a typewriting machine, the combina 'tion of a carriage having' arear carriage supporting bar; tracks carried by said bar;

' tracks, a gear carriedby the carriage in a recess in the carriagesupporting bar intermediate said tracks, and means for effecting aturning of the gear on its-axis as the carriage travels.

In a typewritin machine, the combination of a carriage having a rearcarriage supporting oar; tracks carried by said bar; anti-frictionrollers cotiperative with said tracks; a separator for said rollers; and

' means ior effecting a movement of the separater corresponding to pnehalf the movement of the carriage, said means comprising a rack on theseparator intermediate said tracks, a ear carried by the carriage in arecess in t 1e carriage supporting loar inter-- mediate said tracks, asecond gear connected with said first mentionedgear to turn therewith,and a second rack fixed to the frame 'ofthe machine and meshing withsaid sec 0nd gear.

6. In a typewriting machine, the ofinihina tion of a carriage having acarriage supporting bar; tracks on the upper and lower sides of saidsupporting her; anti-friction rollers which cooperate with said tracks;a separator for the ,rollers at the upper side of the bar; a separateseparator for the rollers at the lower side of the bar; two racks, oneformed on each of said separators; two

pinions, one meshing with each of said racks; two gears, each one can toturn with a pinion; and two fixed racks, each cooperative with one ofsaid gears.

7. In a typewriting machine, the combina tion of a carriage having acarriage supporting bar; tracks on the upper and lower sides'of saidsupporting bar; anti-friction rollers which cooperate with .said tracks;a separator'for the rollers at the upper side of the bar; a separateseparator for the rollers at the lower side 'ofthe bar; two racks oneformed on each of said separators; two shafts carried by the carriage;two pinions, one carried by each of said shafts and each meshing with arack on a separator; two gears, each connected to turn with a pinion;and two fixed racks, each meshing with a gear.

8, In a typewriting machine, the colnbina tion of a carriage having asupporting bar with oppositely disposedinclined tracks at the top andbottom thereof; cylindrical hearing rollers cotiperating with saidtracks,

said rollers having their axes inclined in opposite directions;separator for the up per rollers; an independent separator for thebottom rollers ;'a rack on each separator and means cooperative witheach. rack to effect amovement of the companion sepa rater correspondingto one half the movement of the carriage.

. 9. In a typewriting machine, the combination of a carriage having asupporting bar with oppositely disposed inclined tracks at the top andbottom thereof; cylindrical hearing' rollers coiiperating' with saidtracks, said rollers having their axes inclined in opposite directions;a separator .ior' the upper rollersyan independent separator for thebottom "rollers; 21 rack on each separator; and means cooperative witheach rack to effect a movement of the companion separater correspondingto one half the movement of the ca 'riage, said means comprising apinion for each rack on the separator, a gear connected to each pinion,and a fixed. rack for each gear.

10. In a typewriting machine, the comloination of a carriage having acarriage supporting bar; oppositely inclined tracks on opposite sides ofthe Vertical median plane of said bar and at the top and bottom thereof;a set of cylindrical hearing rollers for the top tracks, said rollershaving oppositely inclined axes; a set of cylindrical bearing rollersfor the bottom tracks, said rollers also having oppositely inclinedaxes; an

independentseparator for each set of r011 of New York, in the county ofNew York,

and State of New York, this 12th day of December, A. l). 1910.

CHARLES PHILO MOSHER ll itnessesf Cnannns E. SMITH, M. F. HANNWEBER.

